2 slices of bread, 20g arugula, 2 slices ham, 2 portions guacamole, sliced cheese x2, 1 portion butter
Prepare two slices of bread.
Slice the ham, cheese, tomato, and lettuce.
Place ham, cheese, tomato, and lettuce on one slice of bread.
Cover with the other slice of bread.
Cut the sandwich in half.